Add patch file support (unified & context diffs) #30

	name: Benchmarks
	on:
	pull_request:
	env:
	CARGO_TERM_COLOR: always
	jobs:
	bench:
	runs-on: ubuntu-latest
	permissions:
	pull-requests: write
	steps:
	- uses: actions/checkout@v6
	- name: Install additional packages
	run: sudo apt-get update && sudo apt-get install -y build-essential libgtksourceview-5-dev
	- name: Install Rust
	uses: actions-rust-lang/setup-rust-toolchain@v1
	- name: Cache cargo
	uses: Swatinem/rust-cache@v2
	- name: Install critcmp
	run: cargo install critcmp
	- name: Benchmark PR branch
	run: cargo bench --bench benchmarks -- --save-baseline pr
	- name: Benchmark base branch
	run: \|
	git fetch origin ${{ github.base_ref }}
	git checkout FETCH_HEAD
	if cargo bench --bench benchmarks -- --save-baseline base 2>/dev/null; then
	echo "BASE_HAS_BENCH=true" >> "$GITHUB_ENV"
	else
	echo "BASE_HAS_BENCH=false" >> "$GITHUB_ENV"
	echo "Base branch has no benchmarks — skipping comparison"
	fi
	- name: Compare benchmarks
	if: env.BASE_HAS_BENCH == 'true'
	run: critcmp base pr

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